the PPA is apparently broken. There are other posts around to indicate this. You might try to build Sage from source instead, or download a full binary build; this all should work.
On Thursday, 4 February 2016 16:20:27 UTC, Jacopo wrote: > > Yesterday I updated to the latest version of Sage. Apparently, something > goes wrong, and afterwards, when I type "sage" in the terminal, the program > opens just to give an error message, telling me to post the crash report > file here. I purged and reinstalled twice, but nothing worked. > > I'm using elementary OS 0.3.2 (which is based on Ubuntu 14.04), my CPU > is Quad-Core Intel® Core™ i5-3230M CPU @ 2.60GHz and I installed Sage > through the PPA. > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.